SERCA

SERCA (sarcoplasmic/endoplasmic reticulum Ca2+-ATPase or SR Ca2+-ATPase) is a membrane protein that transports calcium from the cytosol into the sarcoplasmic reticulum (SR) of muscle cells. The SR is a structure which stores calcium in muscle cells, similar to the smooth endoplasmic reticulum of other cells. SERCA is a calcium ATPase-type P-ATPase. It uses energy from ATP to actively transport calcium ions across the SR membrane.

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